Home / 10,365.31-15,550.40-3,439.81

Finding the Fourth Proportional to 10,365.31, 15,550.40 and 3,439.81

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Solution

The fourth proportional to 10,365.31, 15,550.40 and 3,439.81 is: 5,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.31 : 15,550.40 = 3,439.81 : x
  2. Step 2: Convert to fraction form
    10,365.31/15,550.40 = 3,439.81/x
  3. Step 3: Cross multiply
    10,365.31x = 15,550.40 × 3,439.81
  4. Step 4: Simplify right side
    10,365.31x = 53,490,456.00
  5. Step 5: Solve for x
    x = 53,490,456.00/10,365.31
  6. Step 6: Final answer
    x = 5,160.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.